I copy the URL of the website into the document if it is a Word document before I save it. If I print it, I write the URL on the pattern. If it is a .pdf, I save the .pdf and also save a Word document with the same name as the .pdf. In the Word document, I put the URL and a picture from the .pdf with a reference to the fact that the directions are saved in the .pdf. Just a bit of cross referencing.....